Accession Number : AD0003617
Title : THE DETERMINATION AND DISTRIBUTION OF ORGANIC PHOSPHORUS IN SEA WATER. PART 1. THE DETERMINATION OF ORGANIC PHOSPHORUS IN SEA WATER WITH PERCHLORIC ACID OXIDATION
Descriptive Note : Technical rept.
Corporate Author : WASHINGTON UNIV SEATTLE
Personal Author(s) : HANSEN, ANDREW L ; ROBINSON, REX J
Report Date : Nov 1952
Pagination or Media Count : 29
Abstract : A method is proposed for determining the organic P content in sea water by which the organic material is oxidized with HClO sub 4 and the organic P is converted to phosphate. HClO sub 4 was a better medium for oxidation that H sub 2 SO sub 4 in 2 respects: (1) the perchlorate salts formed upon the digestion of sea water were more readily H sub 2 O-soluble, and (2) HClO sub 4 required a smaller blank correction for impurities. By heating the samples with concentrated HCl, arsenic interference through the volatilization of the chloride was prevented. Total P was determined colorimetrically; organic P was calculated by deducting the inorganic P. For samples of high organic content, preliminary digestion with HNO sub 3 was desirable before HClO sub 4 digestion.
Descriptors : *CHEMICAL OCEANOGRAPHY , CONVERSION , WATER , IMPURITIES , OXIDATION , ORGANIC MATERIALS , INTERFERENCE , CHLORIDES , VOLATILITY , ARSENIC , SEA WATER , ORGANIC PHOSPHORUS COMPOUNDS , DIGESTION(BIOLOGY) , PHOSPHATES , PERCHLORIC ACID
Subject Categories : Biological Oceanography
Physical and Dynamic Oceanography
Distribution Statement : APPROVED FOR PUBLIC RELEASE